20023895265 has 32 divisors (see below), whose sum is σ = 34997187456. Its totient is φ = 9695669760.

The previous prime is 20023895239. The next prime is 20023895279. The reversal of 20023895265 is 56259832002.

It is not a de Polignac number, because 20023895265 - 2¹³ = 20023887073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44749 + ... + 205061.

It is an arithmetic number, because the mean of its divisors is an integer number (1093662108).

Almost surely, 2^20023895265 is an apocalyptic number.

It is an amenable number.

20023895265 is a deficient number, since it is larger than the sum of its proper divisors (14973292191).

20023895265 is a wasteful number, since it uses less digits than its factorization.

20023895265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161089.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 20023895265 in words is "twenty billion, twenty-three million, eight hundred ninety-five thousand, two hundred sixty-five".